func NewDriver(name, root, initPath string, sysInfo *sysinfo.SysInfo) (execdriver.Driver, error) {
switch name {
case "lxc":
// we want to five the lxc driver the full docker root because it needs
// to access and write config and template files in /var/lib/docker/containers/*
// to be backwards compatible
return lxc.NewDriver(root, sysInfo.AppArmor)
case "native":
return native.NewDriver(path.Join(root, "execdriver", "native"), initPath)
}
return nil, fmt.Errorf("unknown exec driver %s", name)
}
func NewRuntimeFromDirectory(config *DaemonConfig, eng *engine.Engine) (*Runtime, error) {
// Set the default driver
graphdriver.DefaultDriver = config.GraphDriver
// Load storage driver
driver, err := graphdriver.New(config.Root)
if err != nil {
return nil, err
}
utils.Debugf("Using graph driver %s", driver)
runtimeRepo := path.Join(config.Root, "containers")
if err := os.MkdirAll(runtimeRepo, 0700); err != nil && !os.IsExist(err) {
return nil, err
}
if ad, ok := driver.(*aufs.Driver); ok {
utils.Debugf("Migrating existing containers")
if err := ad.Migrate(config.Root, setupInitLayer); err != nil {
return nil, err
}
}
utils.Debugf("Creating images graph")
g, err := NewGraph(path.Join(config.Root, "graph"), driver)
if err != nil {
return nil, err
}
// We don't want to use a complex driver like aufs or devmapper
// for volumes, just a plain filesystem
volumesDriver, err := graphdriver.GetDriver("vfs", config.Root)
if err != nil {
return nil, err
}
utils.Debugf("Creating volumes graph")
volumes, err := NewGraph(path.Join(config.Root, "volumes"), volumesDriver)
if err != nil {
return nil, err
}
utils.Debugf("Creating repository list")
repositories, err := NewTagStore(path.Join(config.Root, "repositories-"+driver.String()), g)
if err != nil {
return nil, fmt.Errorf("Couldn't create Tag store: %s", err)
}
if !config.DisableNetwork {
job := eng.Job("init_networkdriver")
job.SetenvBool("EnableIptables", config.EnableIptables)
job.SetenvBool("InterContainerCommunication", config.InterContainerCommunication)
job.SetenvBool("EnableIpForward", config.EnableIpForward)
job.Setenv("BridgeIface", config.BridgeIface)
job.Setenv("BridgeIP", config.BridgeIP)
job.Setenv("DefaultBindingIP", config.DefaultIp.String())
if err := job.Run(); err != nil {
return nil, err
}
}
graphdbPath := path.Join(config.Root, "linkgraph.db")
graph, err := graphdb.NewSqliteConn(graphdbPath)
if err != nil {
return nil, err
}
localCopy := path.Join(config.Root, "init", fmt.Sprintf("dockerinit-%s", dockerversion.VERSION))
sysInitPath := utils.DockerInitPath(localCopy)
if sysInitPath == "" {
return nil, fmt.Errorf("Could not locate dockerinit: This usually means docker was built incorrectly. See http://docs.docker.io/en/latest/contributing/devenvironment for official build instructions.")
}
if sysInitPath != localCopy {
// When we find a suitable dockerinit binary (even if it's our local binary), we copy it into config.Root at localCopy for future use (so that the original can go away without that being a problem, for example during a package upgrade).
if err := os.Mkdir(path.Dir(localCopy), 0700); err != nil && !os.IsExist(err) {
return nil, err
}
if _, err := utils.CopyFile(sysInitPath, localCopy); err != nil {
return nil, err
}
if err := os.Chmod(localCopy, 0700); err != nil {
return nil, err
}
sysInitPath = localCopy
}
var (
ed execdriver.Driver
sysInfo = sysinfo.New(false)
)
switch config.ExecDriver {
case "lxc":
// we want to five the lxc driver the full docker root because it needs
// to access and write config and template files in /var/lib/docker/containers/*
// to be backwards compatible
ed, err = lxc.NewDriver(config.Root, sysInfo.AppArmor)
case "native":
ed, err = native.NewDriver(path.Join(config.Root, "execdriver", "native"))
default:
return nil, fmt.Errorf("unknown exec driver %s", config.ExecDriver)
}
if err != nil {
return nil, err
}
runtime := &Runtime{
repository: runtimeRepo,
containers: list.New(),
graph: g,
repositories: repositories,
idIndex: utils.NewTruncIndex(),
sysInfo: sysInfo,
volumes: volumes,
config: config,
containerGraph: graph,
driver: driver,
sysInitPath: sysInitPath,
execDriver: ed,
eng: eng,
}
if err := runtime.restore(); err != nil {
return nil, err
}
return runtime, nil
}
func NewRuntimeFromDirectory(config *DaemonConfig) (*Runtime, error) {
// Set the default driver
graphdriver.DefaultDriver = config.GraphDriver
// Load storage driver
driver, err := graphdriver.New(config.Root)
if err != nil {
return nil, err
}
utils.Debugf("Using graph driver %s", driver)
runtimeRepo := path.Join(config.Root, "containers")
if err := os.MkdirAll(runtimeRepo, 0700); err != nil && !os.IsExist(err) {
return nil, err
}
if ad, ok := driver.(*aufs.Driver); ok {
utils.Debugf("Migrating existing containers")
if err := ad.Migrate(config.Root, setupInitLayer); err != nil {
return nil, err
}
}
utils.Debugf("Creating images graph")
g, err := NewGraph(path.Join(config.Root, "graph"), driver)
if err != nil {
return nil, err
}
// We don't want to use a complex driver like aufs or devmapper
// for volumes, just a plain filesystem
volumesDriver, err := graphdriver.GetDriver("vfs", config.Root)
if err != nil {
return nil, err
}
utils.Debugf("Creating volumes graph")
volumes, err := NewGraph(path.Join(config.Root, "volumes"), volumesDriver)
if err != nil {
return nil, err
}
utils.Debugf("Creating repository list")
repositories, err := NewTagStore(path.Join(config.Root, "repositories-"+driver.String()), g)
if err != nil {
return nil, fmt.Errorf("Couldn't create Tag store: %s", err)
}
if config.BridgeIface == "" {
config.BridgeIface = DefaultNetworkBridge
}
netManager, err := newNetworkManager(config)
if err != nil {
return nil, err
}
graphdbPath := path.Join(config.Root, "linkgraph.db")
graph, err := graphdb.NewSqliteConn(graphdbPath)
if err != nil {
return nil, err
}
localCopy := path.Join(config.Root, "init", fmt.Sprintf("dockerinit-%s", VERSION))
sysInitPath := utils.DockerInitPath(localCopy)
if sysInitPath == "" {
return nil, fmt.Errorf("Could not locate dockerinit: This usually means docker was built incorrectly. See http://docs.docker.io/en/latest/contributing/devenvironment for official build instructions.")
}
if sysInitPath != localCopy {
// When we find a suitable dockerinit binary (even if it's our local binary), we copy it into config.Root at localCopy for future use (so that the original can go away without that being a problem, for example during a package upgrade).
if err := os.Mkdir(path.Dir(localCopy), 0700); err != nil && !os.IsExist(err) {
return nil, err
}
if _, err := utils.CopyFile(sysInitPath, localCopy); err != nil {
return nil, err
}
if err := os.Chmod(localCopy, 0700); err != nil {
return nil, err
}
sysInitPath = localCopy
}
sysInfo := sysinfo.New(false)
/*
temporarilly disabled.
*/
if false {
var ed execdriver.Driver
if driver := os.Getenv("EXEC_DRIVER"); driver == "lxc" {
ed, err = lxc.NewDriver(config.Root, sysInfo.AppArmor)
} else {
ed, err = chroot.NewDriver()
}
if ed != nil {
}
}
ed, err := lxc.NewDriver(config.Root, sysInfo.AppArmor)
if err != nil {
return nil, err
}
runtime := &Runtime{
repository: runtimeRepo,
containers: list.New(),
networkManager: netManager,
graph: g,
repositories: repositories,
idIndex: utils.NewTruncIndex(),
sysInfo: sysInfo,
volumes: volumes,
config: config,
containerGraph: graph,
driver: driver,
sysInitPath: sysInitPath,
execDriver: ed,
}
if err := runtime.restore(); err != nil {
return nil, err
}
return runtime, nil
}